focal length 170

Fresnel lens is used in projection systems and are used to collimate and focus light.

The Fresnel lens mobilizes the beam source recovered by the light source into parallel light, which significantly improves the brightness of the panel.

The sun spot effect is eliminated, and the overall brightness brightness is improved. A Fresnel lens is generally used in conjunction with the remaining display components, such as cylindrical mirrors.

The advantage of Fresnel lens in projection system is that it can increase the volume display brightness by focusing or adjusting the light collimation.,

If the collimator lens is cancelled, the light will lose a lot when passing through the panel, and the apparent hot spot effect will appear in the appearance, which will increase the brightness of the screen.

Similarly, on the other side of the LCD screen, we must also collect light from the panel into the projection lens.

Our company can customize Fresnel lens for projectors of different sizes, different shapes and different focal lengths according to customer requirements.

The projector uses a Fresnel lens to improve the resolution, sharpness, brightness, etc. of the projector screen.

To rationalize the thread pitch and tooth shape, and to increase the screen, increase the trapezoidal correction range, and use the eccentricity of the lens collecting objective lens.

The projector can achieve good viewing effect. whether it is hoisted or placed on the desktop.